[R] STEP

Dear All, I get a strange error message from the STEP Function: summary(MODELL1-lm(HEP-HBP~START+ REGION:MH +DUR+AB+ASS+TAS+PRK+OPNEW,na.action=na.exclude)) Call: lm(formula = HEP - HBP ~ START + REGION:MH + DUR + AB + ASS + TAS + PRK + OPNEW, na.action = na.exclude) Residuals:

[R] Non : Confidence intervals for p**2 ??

Dear List, I was asked to calculate a confidence interval for p*p. Is there any standard techniques for calculating such an interval? Delta Method? Thank you in advance! Cheers, Patrik __ R-help@stat.math.ethz.ch mailing list

[R] Plotting a stepwise increasing function

Dear All, Sorry for spamming you with something trivial. I would like to plot a stepwise increasing function (if that makes sense? See crude ASCHII art below). I think there is some clever paramter for solving the problem but I just cannot find it. ___| |

[R] Minimum Volume Ellipsoid Estimator (cov.mve??)

Dear All, The Minimum Volume Ellipsoid estimator (cov.mve) was part of S+ but I cannot find it in R. Where can I find it? Why was it excluded? Cheers, Patrik Sweden __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help